Compile X++ in runtime.

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Hello,

I need that a user write a code (admin user) as a user, and compile it in X++ code, verify it, and may run it (by some circumstances).

I have seen once that option integrated in some forms in X++ - Don't remember where.

BTW - How can I compile code in X++ code (and run it)?

Can I limit the code to specific syntax code (that even it will be compiled in X++ - It won't compile, or be compiled on specific circumstances in runtime)?

Thanks :)

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Martin Dráb 239,040 Most Valuable Professional on at

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You can use runBuf() and evalBuf() function to execute X++ code at runtime. It's obviously very dangerous, so you should be extremely careful. Your other option would be actually to save a TreeNode and compile it. And you might do some research to see if you can't utilize XLNT for your purpose.

Regarding your specific syntax, you would have to write your own parser. It may be easier to embed a scripting language and build your DSL there, rather than trying to do everything in X++.

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Rachit 4,015 User Group Leader on at

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Hi Eitan,

In addition to Martin, one example I can mention is that in AX 2009 there was ability to define X++ code in Export/Import Definiation Group >> Table Setup >> Import criteria. Sample shown below:

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Srinath Sundaresan 510 on at

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You can compile a treenode. For example below is the code to compile all forms.

Mark this question as answered if it helps.

static void myJobAOTcompile(Args _args)

{

treeNode treeNode;

treeNode = TreeNode::findNode(#FormsPath);

treeNode.AOTcompile();

}

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Community Member on at

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Martin Drab is right - this is dangerous.

So, I need as much to protect what can be written in code.

Nevertheless, I don't give that ability to everyone.

What Rachit Garg explained is a good solution I need (I add X++ within a method), so I control what user can write or not (in some manners).

How can I do that (partial X++ within a method)?

How in AX 2009 that could be handled (partial code)?

Also - In AX 2009 - Does the code is added to AOT object?

Thanks :)

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Martin Dráb 239,040 Most Valuable Professional on at

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You can't compile and execute a half of a method, but you obviously can add the header and footer of the method to what you get from users. It's exactly what happens in Rachit's example, if you specify a filter expression for AOT search etc.

And the explanation how to run is still the same as above.

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Srinath Sundaresan 510 on at

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You can use the XPPCompiler class to do compilation. I wrote a simple job to explain how this works. You can also read a xpp file and compile it using this API.

The XPPCompiler class has compile method. I think the same is used in the form Rachit mentioned above.

static void Job9(Args _args)

{

XppCompiler x=new XppCompiler();

x.compile(@"static void Job10(Args _args)

{

str s;

s= 1.0;

}");

error (x.errorText());

}

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